Add AI writing assistant plugin with local backend, brave search, and image generation support

- Implement local backend AI provider with Ollama integration
- Add Brave Search API integration for real-time search suggestions
- Add image generation manager with multiple AI providers
- Create hybrid provider system with local/cloud fallback
- Add comprehensive settings UI with provider management
- Implement Gutenberg sidebar with writing assistance controls
- Add SEO schema generation for AI-generated content
- Multiple provider support: OpenRouter, local backend, Codex

views/settings/tab-guide.php

@@ -13,8 +13,8 @@ if ( ! defined( 'ABSPATH' ) ) {
 <div class="row g-4">
 	<!-- How Models Are Used -->
 	<div class="col-12">
-		<div class="card border-0 shadow-sm">
-			<div class="card-header bg-white border-bottom-0 pt-4 pb-0">
+		<div class="card border-0 ">
+			<div class="card-header  border-bottom-0 pt-4 pb-0">
 				<div class="d-flex align-items-center">
 					<span class="me-3 fs-4">📖</span>
 					<div>
@@ -86,8 +86,8 @@ if ( ! defined( 'ABSPATH' ) ) {
 
 	<!-- Recommended Models -->
 	<div class="col-12">
-		<div class="card border-0 shadow-sm">
-			<div class="card-header bg-white border-bottom-0 pt-4 pb-0">
+		<div class="card border-0 ">
+			<div class="card-header  border-bottom-0 pt-4 pb-0">
 				<div class="d-flex align-items-center">
 					<span class="me-3 fs-4">⭐</span>
 					<div>
@@ -159,8 +159,8 @@ if ( ! defined( 'ABSPATH' ) ) {
 
 	<!-- Cost Examples -->
 	<div class="col-12">
-		<div class="card border-0 shadow-sm">
-			<div class="card-header bg-white border-bottom-0 pt-4 pb-0">
+		<div class="card border-0 ">
+			<div class="card-header  border-bottom-0 pt-4 pb-0">
 				<div class="d-flex align-items-center">
 					<span class="me-3 fs-4">💡</span>
 					<div>